A few weekends ago I had the pleasure of attending an art exhibit at the San Diego Museum of Contemporary Art. The exhibit was a collection of sketches and sculptures by Colter Jacobson called This is How We Walk on the Moon. At times I find that looking at art draws greater appreciation for the ability of people to perceive and recreate their world.
Colter does something interesting. He draws two pictures of which one is directly from the photo and the other is made from his memory. This allows for two slightly different types of pictures because memory is imperfect. Notice how the tree changed.
Memory is also like an editable photograph. You have one picture but the way in which we interpret and see a picture will be based on other factors such as our personality. Consider how one person will notice a bird in a picture and the other the tree that eh bird is looking on. this is one reason why art and perception is a unique experience.